Aeroplane



Feb. 19, 1929. -v 1,702,634

c. GIDA ET AL AEROPLANE Filed Dec. 2o,v 1927 /An/E/vTo/zs.` cAEfsArel 610A LEO JACo 9/ Patented i9, i929.

unirse STAT-ss i y 1,792,634 PATENT OFFICE.

- oAnsAR Ginn AND Lno .'rAooPI, on ooLMA, cALiFoRNIA. .v

- y AERorIaum.v v

Application filed December 20, 1927. Serial No. 241,399.

Our invention relates to improvements in aeroplanes wherein the outer front corners of the wings are rounded to decrease forward resistance of said planes and the lifting area thus removed is regained by forming rearwardly extending portions on the outer rear corners of the planes, such portions extending rearwardly beyond the rear edge 0f the main body of the wing or plane, forming a means, without increase in the weight of the wing, for increasing the longitudinal stability of the aeroplane.

The primary object of the present inven-r tion is to provide a new and improved aeroplane. i

Another object of the present invention is to provide a new and improved aeroplane in which the wings or planes have less forward resistance and greater longitudinal stability thanV planes of similar lifting area, without increasing the weight.

A further object is to provide an improved device of the character described in which a single guy wire is employed to more rigidly and firmly secure the wings to an aeroplane and also to further support wings of the type set forth against forward resistance.

A still further object is to providea new and improved aeroplane of the type set forth, in which the usual ailerons are provided with their outer ends forming a part of the rearward extensions in order that said ailerons may have a greater lateral stabilizing effect and at the same time, by reason of their rearwardly projected portions, tend to increase and assist in longitudinal stabilization.

We accomplish these and other objects by means of the improved device disclosed in the drawings forming a part of the present application wherein like characters of reference are used to designate similar parts throughout the said specification and drawings, and in which- Fig. l is a plan view of an aeroplane with f our improvement applied thereto; and

Fig. 2 is a partly broken side elevation of Fig. l.

Referring to the drawings the numeral 1 is used to designate in general the fuselage of an aeroplane having the usual laterally extending wings or planes 2. In the present 1nvention the outer forward corners of the planes 2 are rounded as at 3 in order to. decrease the amount of front edge presented directly against forward resistance. The resulting loss of lifting surface is compensated by'providing rearwardly extending projections 4. extending from the rearward outer corners of each wing or plane 2 as disclosed in Figs. l and 2 of the drawings.

The rear edge 6 of the wings or planes 2 have hingedly mounted therein, in the usual manner and for the usual purpose, suitable ailerons 7, and in the present instance these ailerons 7 have enlarged or rearwardly extending portions 8 which conform to the rearward extensions 4 of the wings 2. That is to say the outer portions 8 of the ailerons 7 form a part of the rearwardly extending portions 4; of the wings 2, whereby said ailerons may increase their stabilizing effect when operated for that purpose vas well as y assisting in the longitudinal stabilization of the aeroplane when alingned with their respective wings.

In order to securely connect and support the planes or wings 2 in a lateral or extended position, and to more rigidly and securely connect the same to the fuselage or body l,

kwe have provided a single guy wire 9 which extends in opposite directions from the front center to the wings 2, and by passing along said front edge and around the rounded portions 2 and rearward extensions 4 of said wings 2, the said wire 9 presents no further wind resistance and is itself not exposed to consequent stresses and strains of a wire separated and exposed to wind resistance.

Therefore, the wire 9, being single and continuous, not only more rigidly and firmly secures the wings together and to the fuselage, but said wire 9 also forms a support for the planes or wings against forward resistance without in itself forming or providing a separate and independent resistance.

Having thus described our invention what we claim as new and desire to secure by Let-V ters Patent is v l. The combination. with an aeroplane of a wing having .its forward outer corner rounded to decrease wing resistance and an extension on its rearward outer corner extending rearwardly of the back edge of the main body of the wing to increaselongitudinal stability; and a guy wire extending from the front end of said plane and along the front edge of the wing and around the rounded corner and extension to tie said wing to said plane and support the said wing against forward resistance.

2. The combination with an aeroplane of a pair of wings extending laterally there- 'from and having' rounded outer front corners to decrease wind resistance to said wings, and likewise provided with rearwardly eX- tending' portions on the outer rear corners of said wings to increase longitudinal stability of said aeroplane; ailerons hingedly mounted on the rear edges of said wings and having` their outer portions forming a part of said rearwardly extending portions; and

a guy wire extending aeroplane along the front edges and around the corners and extensions of said wings to tie said wings to said aeroplane and support the said wing` against forward resistance.

In witness whereof, we have hereunto set 15 our signatures.

CAESAR GIDA. LEO JACOPI.

from the front of said 10 

